Electron tunneling through fatty-acid monolayers

Abstract

The exponential dependence of the tunneling conductivity on the thickness of the insulating material has been studied by varying the length of fatty-acid monolayers in metal/fatty-acid-monolayer/metal junctions. By varying the temperature between 20 and −100 °C it is shown that the tunneling current remains relatively constant, while the decrease in capacitance observed can be attributed to the influence of the Al2O3 layer in our junctions.